Exhaust

Speedway Motors stocks all the best low-restriction open wheel racing headers for Sprint and Midget chassis! We also have a great selection of header kits, collectors and tubing so you can repair your damaged headers or fabricate a custom set for your open wheel racing application.

These anti-reversion torque booster mufflers from Dynatech® balances the exhaust system and helps to keep exhaust gases from contaminating the intake charge. They help increase power and torque at part throttle.

Build or modify your own headers with these flange plates. These exhaust manifold flanges have round ports. This is a pair of header flanges only, no bolts and no gaskets included, Flange is 5/16" thick.

These anti-reversion torque booster mufflers from Dynatech® balances the exhaust system and helps to keep exhaust gases from contaminating the intake charge. They help increase power and torque at part throttle.

Steel Construction

Painted Finish

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"Open Wheel, Exhaust" Page 1 of 31

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These zinc plated steel header bolts feature an Allen head and have 3/8"-16 x 3/4" long threads. They are perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

Great option for increasing the life, horsepower and appearance of your new Dynatech®s. All headers purchased with this option are coated inside and outside. The coating will significantly reduce the underhood temperature of your car - which translates into a small horsepower gain, not to mention it it makes those headers look great! Headers purchased with this ceramic coating come with a lifetime rust-through warranty and a customer satisfaction guarantee.

Note:This option can only be ordered in conjunction with Factory Shipped Dynatech® products.

A great exhaust system starts at the begining - the exhaust manifold flange. One of Dynatech®s biggest advantages is the wide selection of port machined flanges. All the header flanges are CNC laser machined for unparalleled quality and fit.

Save money by welding and assembling your own headers! These small block Chevy header kits will work for many racing and rodding applications. It includes everything you need to assemble a pair of high-quality headers: eight mandrel-bent primary tubes, two pre-formed collectors, two extra-thick standard-port flanges, two gaskets, and 12 header bolts.

Designed for the seasoned, hands-on enthusiast, weld up headers will require some cutting, fitting and welding.

Dynatech® merge collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it and go" part. In order to realize the full potential of this collector disign, dyno testing is recommended. (See Notes tab)

100% TIG-welded

Optimum reduction angle

Increases torque and horsepower

Note: 9:1 applications must use stainless (not mild steel) merge collectors for best performance and durability.

Dynatech® Ceramic Coated Merge Collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it on and go" part. In order to realize the full potential of this collector design, dyno testing is recommended.

100% TIG-welded

Optimum reduction angle

Increases torque and horsepower

Sold individually

Listed asPrimary I.D. x Collector O.D.

Note: Does not include O2 bungs. To purchase separately, order part 311-78510097.

Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance!

Dynatech® Ceramic Coated Merge Collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it on and go" part. In order to realize the full potential of this collector design, dyno testing is recommended.

100% TIG-welded

Optimum reduction angle

Increases torque and horsepower

Sold individually

Listed asPrimary I.D. x Collector O.D.

Note: Does not include O2 bungs. To purchase separately, order part 311-78510097.

Dynatech® Ceramic Coated Merge Collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it on and go" part. In order to realize the full potential of this collector design, dyno testing is recommended.

100% TIG-welded

Optimum reduction angle

Increases torque and horsepower

Sold individually

Listed asPrimary I.D. x Collector O.D.

Note: Does not include O2 bungs. To purchase separately, order part 311-78510097.

Dynatech® Mild Steel Merge Collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it on and go" part. In order to realize the full potential of this collector design, dyno testing is recommended.

100% TIG-welded

Optimum reduction angle

Increases torque and horsepower

Formed long transition 4-into-1 design for maximum power

Jig-located U-tabs at 180 degrees for bolt-on mounting

Sold individually

Listed asPrimary I.D. x Collector O.D.

Note: Does not include O2 bungs. To purchase separately, order part 311-78510097.

Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance!

Many rodders are looking to install Chevy’s powerful and efficient LS1 / LS6 Small Block V8 in their street rods, customs and classic trucks. These shorty headers can make those installations easier in a variety of applications, and help produce more power as well.

An oxygen sensor bung is included with these block hugger headers, but not installed, for those who want to keep the engine’s electronic fuel injection. Includes bolts, gaskets, and reducers.

Speedway Motors is America’s Oldest Speed Shop® and has been
a trusted source for high performance parts for street rods and racing for over 60
years. Speedway Motors has built a reputation for providing friendly expert advice
and superior service. Whether you are racing, building a street rod or restoring an
old classic, Speedway Motors has the performance parts you need – in stock and ready
to ship today.